GPU Wiki

Compare GPUs

Pick up to four GPUs and compare their specs row by row. Specs that mean different things across generations are kept apart.

Popular comparisons

Add a third or fourth GPU
Spec GeForce GT 640 OEM
Overview
Product name NVIDIA GeForce GT 640 OEM
Architecture Kepler
Generation / family GeForce 600 Series
GPU codename GK107
Launch date 2012-04-24
Market segment Desktop, OEM in GeForce 600 Series
Board type / entry type Reference GPU
GPU
Process node TSMC 28 nm
Die size 118 mm²
Transistor count 1.27 billion
GPU chip GK107
SM / multiprocessor count 0
CUDA Cores 384
ROPs 16
TMUs 32
Clocks
Base / Core clock 797 MHz
Boost clock 797 MHz
Memory clock 891 MHz
Memory
Memory size 2 GB
Memory type DDR3
Memory bus width 128-bit
Memory bandwidth 28.51 GB/s
Bus / Interface
Bus interface PCIe 3.0 x16
AGP / PCI / PCIe distinction PCIe
Power
TDP / TBP / board power 50 W
Recommended PSU 250 W
Power connectors None
Slot width Single-slot, 145 mm length
Display / Media
Display outputs 1x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2
Features
DirectX support DirectX 11.0
OpenGL support OpenGL 4.6
Vulkan support Vulkan 1.2
CUDA support 3.0
Shader Model 5.1
Performance / Benchmarks
FP32 throughput 0.61 TFLOPS
Muted cells indicate unavailable, not applicable, or not directly comparable specifications.

DLAA counts as native resolution; DLSS, FSR and XeSS upscaling never do. A ray tracing setting without a readable on or off value is read as on.